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| Patents for James B. Gray | |||||
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| Number | Date | Patentee | Title | Type | |
| 909,727 | Jan. 12, 1909 | H.W. Sage | Tooth-bending attachments | saw sharpening machines | |
| 989,727 | Apr. 11, 1911 | H.W. Sage | Tooth-bending attachment | saw sharpening machines | |